Homemade Cruffins

Bahan-bahan (12 porsi)

• 1 cup (240ml) whole milk, warmed to about 110°F (43°C)
• 2 and 1/4 teaspoons (7g) instant or active dry yeast (1 standard packet)
• 3 Tablespoons (38g) granulated sugar
• 3 Tablespoons (43g) unsalted or salted butter, softened to room temperature and cut into 3 pieces
• 3 cups (375g) all-purpose flour (spooned & leveled), plus more as needed
• 1 and 1/4 teaspoons salt
• 1 cup (16 Tbsp; 226g) salted butter, slightly softened (see Note)
• 1 Tablespoon all-purpose flour
• 3/4 cup (150g) granulated sugar
• 1 Tablespoon ground cinnamon
• optional fillings: 6 Tablespoons Nutella, jam, lemon curd, or pastry cream